Brittle Bladderfern vs Laysan Duck

Cystopteris tenuis compared with Anas laysanensis

Key Differences

• Brittle Bladderfern is Not Evaluated while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Brittle Bladderfern	Laysan Duck
Kingdom	Plantae (식물)	Animalia (동물)
Phylum	Tracheophyta	Chordata (척삭동물)
Class	Polypodiopsida (고사리강)	Aves (새)
Order	Polypodiales (고사리목)	Anseriformes (기러기목)
Family	Cystopteridaceae	Anatidae
Genus	Cystopteris	Anas
Species	Cystopteris tenuis	Anas laysanensis

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Brittle Bladderfern	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada and United States.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

Laysan Duck

레이산 오리(Anas laysanensis)는 IUCN 적색목록에서 위급(CR) 등급으로 분류됩니다. 심각한 개체수 감소와 서식지 손실로 인해 야생에서 절멸할 위험이 매우 높은 종입니다.